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Supercritical fluid chromatography is a separation technique in which the mobile phase is a fluid above and relatively close to its critical temperature and pressure.
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Some Related Sentences
Supercritical and fluid
* Supercritical fluid, a substance at a temperature and pressure above its thermodynamic critical point
* Supercritical fluid chromatography, high performance liquid chromatography ( HPLC ), using supercritical carbon dioxide as the mobile phase
* Supercritical water reactor ( SCWR ), a Generation IV nuclear reactor concept that uses supercritical water as the working fluid
* Supercritical fluid extraction
* Supercritical fluid
Supercritical drying ( red arrow ) goes beyond the critical point ( chemistry ) | critical point of the working fluid in order to avoid the direct liquid – gas transition seen in ordinary drying ( green arrow ) or the two phase changes in freeze drying ( blue arrow ).
# REDIRECT Supercritical fluid
* Supercritical fluid extraction
Supercritical and chromatography
* Supercritical Fluid Chromatography, is a form of normal phase chromatography
Supercritical and is
* SCAMP ( Supercritical Air Mobility Pack ) is an out-of-water liquid-air open-circuit breathing set designed by NASA by adapting space suit technology.
Supercritical water oxidation or SCWO is a process that occurs in water at temperatures and pressures above a mixture's thermodynamic critical point.
* Supercritical mass, where there is an increasing rate of fission
* Supercritical flow, when the flow velocity is larger than the wave velocity
Supercritical drying is a process to remove liquid in a precisely controlled way.
Supercritical water is also a powerful oxidizer, partly because its critical point occurs at such a high temperature ( 647 K, 374 ° C ) and pressure ( 22. 064 MPa, 3, 212 psi ).
Supercritical Fluid Extraction ( SFE ) is the process of separating one component ( the extractant ) from another ( the matrix ) using supercritical fluids as the extracting solvent.
Supercritical drying is reputed to be the most efficient drying technique but is rather expensive and difficult to implement.
Supercritical and separation
* Supercritical steam generators, a steam generator operating above the critical point of water, hence having no water-steam separation
Supercritical airfoils feature four main benefits: they have a higher drag divergence Mach number, they develop shock waves farther than traditional airfoils, they greatly reduce shock-induced boundary layer separation, and their geometry allows for more efficient wing design ( e. g., a thicker wing and / or reduced wing sweep, each of which may allow for a lighter wing ).
Supercritical and above
* Supercritical carbon dioxide, same as above, applied to carbon dioxide
* Supercritical water oxidation or SCWO, a process that occurs in water at temperatures and pressures above a mixture's thermodynamic critical point
Extraction conditions for Supercritical carbon dioxide are above the critical temperature of 31 ° C and critical pressure of 74 bar.
Supercritical and temperature
The flow rate of Supercritical carbon dioxide should be measured in terms of mass flow rather than by volume because the density of the changes according to the temperature both before entering the pump heads and during compression.
Supercritical and pressure
* Supercritical steam generator or Benson boiler, a high-pressure steam generator that operates in the supercritical pressure regime, such that no boiling takes place within it.
Supercritical airfoil Mach Number / pressure coefficient diagram.
Supercritical and .
Supercritical water has recently been a topic of research.
Supercritical steam generators are frequently used for the production of electric power.
The pioneer works on high-pressure Supercritical Water Flames were carried out by professor EU Franck at the German University of Karlsruhe in the late 80s.
Supercritical carbon dioxide has also been used as an extractant.
Supercritical fluids are suitable as a substitute for organic solvents in a range of industrial and laboratory processes.
Supercritical carbon dioxide extraction of olive leaves has been shown to require less solvent per grams of leaf than a traditional extraction ( 141. 7 g CO2 vs. 194. 4 g ethanol / 1 g olive leaf ).
In 1974 he was awarded the NASA Exceptional Service Medal, for his contributions as NASA Project Pilot on the F-111 Supercritical Wing Program and on the F-15 Remotely Piloted Research Vehicle.
Among the NASA aircraft that he flew were the F-111, F-14, F-8 Digital Fly-By-Wire and Supercritical Wing, YF-12A, the oblique wing AD-1, Controlled Deep Stall Sailplane, sub-scale F-15 remotely piloted spin research vehicle and the X-24B lifting body.
Supercritical airfoils are characterized by their flattened upper surface, highly cambered ( curved ) aft section, and greater leading edge radius compared with traditional airfoil shapes.
* Supercritical airfoil-U. S. Centennial of Flight Commission
Care must be taken if rubber seals are used on the vessel, as the Supercritical carbon dioxide may dissolve in the rubber, causing swelling, and the rubber will rupture on depressurization.
fluid and chromatography
It may be a liquid ( LC and Capillary Electrochromatography ( CEC )), a gas ( GC ), or a supercritical fluid ( supercritical-fluid chromatography, SFC ).
* Polyethylene glycol is also commonly used as a polar stationary phase for gas chromatography, as well as a heat transfer fluid in electronic testers.
Adsorption, ion exchange, and chromatography are sorption processes in which certain adsorbates are selectively transferred from the fluid phase to the surface of insoluble, rigid particles suspended in a vessel or packed in a column.
fluid and is
structurally, the U.N. is still fluid, vulnerable to the pressures that its new and enlarged membership are bringing to bear upon it.
There is a small well in the top in which the fluid or paste to be tested is placed.
A tape of cellulose acetate is pulled between the blocks and the tape pulls the fluid or paste with it between the parallel faces of the blocks.
It is presumed that this negative head was associated with some geometric factor of the assembly, since different readings were obtained with the same fluid and the only apparent difference was the assembly and disassembly of the apparatus.
If Af is the change per unit volume in Gibbs function caused by the shear field at constant P and T, and **yr is the density of the fluid, then the total potential energy of the system above the reference height is Af.
( B ) That because of the low viscosity of the fluid, the internal pressure is the same in all directions.
The intranasal instillation of a fluid suspension of infectious agent in an anesthetized animal is far different from exposure, through natural respiration, to aerosolized organisms.
In so far as this goal is achieved, the society becomes more fluid, artificial barriers to social mobility are reduced, and people at the lower end of the social hierarchy share more fully in the material and cultural goods of society.
As a result of having an actuator controlled precisely with air pressure via a servosystem, the movement is very fluid and there is very little noise.
Unlike ethanol, methanol is extremely toxic: As little as 10 ml can cause permanent blindness by destruction of the optic nerve and 30 ml ( one fluid ounce ) is potentially fatal.
It is derived from fluid dynamics.
where is the acoustic pressure and is the acoustic fluid velocity vector, is the vector of spatial coordinates, is the time, is the static mass density of the medium and is the bulk modulus of the medium.
In acoustics, the fluid medium is assumed to be Newtonian.
For a Newtonian fluid, the deviatoric stress tensor is related to the velocity by
Another frequently made assumption is that effect of body forces on the fluid medium is negligible.
0.165 seconds.